TY - BOOK T1 - Directory of assistance centers of the National Water Data Exchange (NAWDEX) DA - 1993] CY - Reston, Va. : CY - Denver, Colo. : AU - Blackwell, Cassandra D. CN - I 19.76: PB - U.S. Dept. of the Interior, U.S. Geological Survey ; PB - Books and Open-File Reports Section [distributor, PP - Reston, Va. : PP - Denver, Colo. : PY - 1993] N1 - "Supersedes Open-file report 91-507." N1 - Distributed to depository libraries in microfiche. N1 - Shipping list no.: 93-1307-M. ID - 198436 KW - Hydrology TI - Directory of assistance centers of the National Water Data Exchange (NAWDEX) ER -